A manager has been using a certain forecasting technique to forecast demand for word processing units for the past five periods. Actual and forecasted amounts are shown below. He had difficulties in identifying whether the used technique is better than the weighted moving average (WMA) with 0.5 being the weight with the most resent, 0.3, 0.2 , Which forecast is better the ( manager or WMA ) forecast? * Period 1 2 3 4 5 UAN Demand Forecasted 90 98 85 87 91 95 92 7 95 88